Perhaps you should try some spelling variations:
wang wang » wang liang, wang yan, wang yong
wang yang » wang yan, wang liang, wang yanling
dam rein » dam region, am rhein, der rein
hong shu » cong shu, tong shui, wong shiu
di rein » i rein, der rein
gang li » gan li, tang li, wang li
hong yu » wong yue

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: wang wang yang ((di rein) OR (dam rein)) gang li ((hong shu) OR (hong yu)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang wang yang ((di rein) or (dam rein)) gang li ((hong shu) or (hong yu)) ;*.